42719644 has 24 divisors (see below), whose sum is σ = 82479600. Its totient is φ = 19198080.

The previous prime is 42719629. The next prime is 42719687. The reversal of 42719644 is 44691724.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1539 + ... + 9370.

It is an arithmetic number, because the mean of its divisors is an integer number (3436650).

Almost surely, 2^42719644 is an apocalyptic number.

42719644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42719644 is a deficient number, since it is larger than the sum of its proper divisors (39759956).

42719644 is a wasteful number, since it uses less digits than its factorization.

42719644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11013 (or 11011 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 42719644 is about 6536.0266217328. The cubic root of 42719644 is about 349.5767509635.

The spelling of 42719644 in words is "forty-two million, seven hundred nineteen thousand, six hundred forty-four".